SEAGATE TECHNOLOGY, INC.
       Customer Technical Support FAX Network +1 408 438-8137
     Customer Technical Support Bulletin Boards (300-9600, 8-N-1)
/----------------------------------+---------------------------------\
| United States    +1 408 438-8771 |  United Kingdom +44 628 478011  |
+----------------------------------+---------------------------------|
| Germany         +49  89 140-9331 |  Singapore      +65   227-2217  |
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                            (C)opyright 1991



ST-1100 (94355-100) Swift ST412 MFM

     /---\
     | O |  5
     | O |  G
     | O |  G                                          /--- Located on rear
     | O | 12                                          |     side of drive
     \---/          / Controller Cable                 |
     ======== ==   =============== ==            /-----+-----\
      \Data Cable    /----------\   1             o o o o o o
                     1----------/                 o o o o o o   (front)
                      Terminator                  1 2 3 4 R Ext
                                                  ---+--- | |
                                                     |    | |
                                                     |    | |
                                                     |    | |
                                                     |    | |
                                Drive Selects  ------/    | |
                                Radial Select ------------/ |
                                External spindle clock  ----/


                              ST-1100
                         94355-100 Swift

       UNFORMATTED CAPACITY (MB) ________________100
       FORMATTED CAPACITY (17 SECTORS) (MB) _____83
       ACTUATOR TYPE ____________________________VOICE COIL
       TRACKS ___________________________________9,648
       CYLINDERS ________________________________1,072
       HEADS ____________________________________9
       DISCS ____________________________________5
       MEDIA TYPE _______________________________THIN FILM
       RECORDING METHOD _________________________MFM
       TRANSFER RATE (mbits/sec) ________________5.0
       SPINDLE SPEED (RPM) ______________________3,600
       AVERAGE LATENCY (mSEC) ___________________8.33
       INTERFACE ________________________________ST412
       SECTORS PER DRIVE ________________________164,016
       TPI (TRACKS PER INCH) ____________________1,350
       BPI (BITS PER INCH) ______________________14,019
       AVERAGE ACCESS (ms) ______________________15
       SINGLE TRACK SEEK (ms) ___________________4
       MAX FULL SEEK (ms) _______________________35
       MTBF (power-on hours) ____________________150,000
       POWER REQUIREMENTS: +12V START-UP (amps) _2.5
                           +12V TYPICAL (amps) __0.7
                           +5V START-UP (amps) __0.75
                           +5V TYPICAL (amps) ___0.4
                           TYPICAL (watts) ______10
                           MAXIMUM (watts) ______12
       BUFFERED STEP PULSE RATE (micro sec) _____6-200
       WRITE PRECOMP (cyl) ______________________N/A (1073)
       REDUCED WRITE CURRENT (cyl) ______________N/A (1073)
       LANDING ZONE (cyl) _______________________AUTO PARK
       IBM AT DRIVE TYPE ________________________35 or *

 * FORMATTING AND PARTITIONING SOFTWARE MAY BE REQUIRED TO
   ACHIEVE FULL CAPACITY.  ALSO, CHECK TO SEE IF YOUR CMOS SETUP
   HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE AVAILABLE.


                          Swift Remote LED Option

               Front View of Drive Without the Plastic Bezel

                                  /---+---\
                                  | A | B |    B = Anode
                                  +---+---|    D = Cathode
                                  | C | D |
              ...=================#===#===#=====P=W=A===...


        o Default jumper at C-D for LED mounted on drive PWA
        o To use remote LED, remove jumper and extend B (Anode)
          and D (Cathode).
        o Swift LED kit 75912397 allows connection to a remote LED
        o Swift LED kit 95913369 has an LED for attachment to the
          system front bezel or a 5.25-inch frame kit

Seagate reserves the right to change, without notice, product
offerings or specifications. (6/26/90)